Nuclear Science References (NSR)

Medium Effects on Pion Production in Proton Nucleus Collisions

NUCLEAR REACTIONS ^6,7Li, ¹²C, Al, Ti, Cu, W, Pb, U(p, n), E=800 MeV; ⁹Be, ¹²C, ²⁷Al(p, n), E=647 MeV; analyzed neutron spectra; deduced pion production medium effects.

1998IO04 Roum.J.Phys. 43, 385 (1998)

D.B.Ion, M.L.D.Ion, C.Petrascu

Information Entropies in Antikaon-Nucleon Scattering and Optimal State Analysis

NUCLEAR REACTIONS ¹H(K^-, K^-), (K^-, K⁰), ¹n(K⁰, K⁰), E at 0.4-1.3 GeV/c; analyzed phase shift data; deduced angular information entropy.

1995IO01 Phys.Lett. 346B, 172 (1995)

Nuclear Pionic Cherenkov-Like Radiation from High Energy Nucleons

NUCLEAR STRUCTURE ²⁰⁸Pb, ²³⁸U; calculated nuclear pionic Cherenkov-like radiation differential σ following bombardment by high energy nucleons. Quantum theoretical approach.

doi: 10.1016/0370-2693(94)01692-6
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1995IO02 Phys.Rev. C52, 3332 (1995)

Nuclear Mesonic Cherenkov-Like Radiation from High Energy Nucleons

NUCLEAR REACTIONS ²⁰⁸Pb(p, nπ⁺), E=high; calculated nuclear mesonic Cherenkov-like radiation associated differential σ.

doi: 10.1103/PhysRevC.52.3332
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1994IO03 Phys.Lett. 338B, 7 (1994)

Are the Supergiant Halos Experimental Evidence for the Pionic Radioactivity ( Question )

doi: 10.1016/0370-2693(94)91335-8
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1994IO05 Roum.J.Phys. 39, 213 (1994)

D.B.Ion, C.Petrascu, A.Rosca, V.Topor

Optimal State Evidences in Antiproton Proton Scattering at Low Energies

NUCLEAR REACTIONS ¹H(p-bar, X), E at 181-3000 MeV/c; analyzed data; deduced optimal state evidence.

1994IO06 Roum.J.Phys. 39, 395 (1994)

D.B.Ion, A.Rosca, C.Petrascu

Pion Production via Cherenkov-Like Effect in Hadronic Media

1994IO07 Roum.J.Phys. 39, 403 (1994)

D.B.Ion, C.Kusko

The Isospin Invariance and Quantum Distances in the Hilbert Space of Scattering Amplitudes

1994IO08 Roum.J.Phys. 39, 527 (1994)

Spontaneous Particle Production via Cherenkov-Like Effects in Nuclear Media

1993IO01 Phys.Rev. C48, 1172 (1993)

Quantum Theoretical Approach to Meson Production in Nuclear Media via Cherenkov Mechanisms

NUCLEAR STRUCTURE ²⁰⁸Pb, ¹²⁰Sn; calculated nuclear mesonic Cherenkov radiation σ for π⁰ production.

doi: 10.1103/PhysRevC.48.1172
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1993IO03 Roum.J.Phys. 38, 31 (1993)

D.B.Ion, A.C.Ion, R.Ion-Mihai

Deltonic Fission - A New Mode of Nuclear Fission

NUCLEAR STRUCTURE Z=114-130; N=171-192; calculated deltonic fission Q; deduced two islands of relative stability.

1993IO04 Roum.J.Phys. 38, 655 (1993)

D.B.Ion, A.Rosca

Mesonic Cerenkov Mechanism Analysis in π±p and K^-p Interactions

NUCLEAR REACTIONS ¹H(π^-, π^-X), E at 1-5 GeV/c; ¹H(K^-, X), E at 2-5 GeV/c; analyzed σ data. Mesonic Cerenkov mechanism.

1993ST19 Acta Phys.Pol. B24, 1785 (1993)

W.Stocker, D.B.Ion

Coherent Pion Production by Cherenkov-Like Effects in Nuclei

NUCLEAR REACTIONS ²⁰⁸Pb(p, nπ⁺), E=high; calculated nuclear mesonic Cerenkov radiation associated differential σ for π⁺.

1992IO02 Rev.Roum.Phys. 37, 569 (1992)

D.B.Ion, C.Petrascu

Towards an Optimal State Analysis in Pion-Nucleon Scattering

NUCLEAR REACTIONS ¹H(π⁺, π⁺), (π^-, π^-), E at 3-200 GeV/c; analyzed σ, other data; deduced scaling function vs scaling variable. Optimal state analysis.

1992IO03 Roum.J.Phys. 37, 763 (1992)

D.B.Ion, F.Gh.Nichitiu

Cerenkov Mechanism and Resonance Production

NUCLEAR REACTIONS ¹H(π^-, X), E at ≤ 20 GeV/c; ¹H(p, X), E at ≤ 32 GeV/c; calculated σ(E). Mesonic Cerenkov mechanism.

1992IO04 Roum.J.Phys. 37, 977 (1992)

D.B.Ion, C.Petrascu, A.Rosca

Experimental Evidence for the Optimal States in Kaon-Nucleon Scattering

NUCLEAR REACTIONS ¹H(K⁺, K⁺), (K^-, K^-), E at ≥ 3 GeV/c; analyzed scaling function data; deduced optimal states evidence. Optimal state analysis, other data included.

1992IO05 Roum.J.Phys. 37, 991 (1992)

D.B.Ion, A.Rosca, C.Petrascu

Cerenkov Mechanism Analysis in pp, (p-bar)p, K⁺(p) Interactions

NUCLEAR REACTIONS ¹H(p, X), E ≤ 30 GeV/c; ¹H(p-bar, X), E ≤ 10 GeV/c; ¹H(K⁺, X), E ≤ 20 GeV/c; analyzed reaction σ(E); deduced Cerenkov radiation, mechanism role in pseudoscalar, vector meson production.

1992TO06 Rev.Roum.Phys. 37, 211 (1992)

V.Topor Pop, D.B.Ion, M.Ivascu, M.Petrascu, M.Haiduc, R.Ion-Mihai, K.D.Tolstov

Search for Spontaneous Emission of Pions

RADIOACTIVITY ²⁵²Cf(SF); measured SF-decay to π-decay branching ratio upper limits.

NUCLEAR REACTIONS ²³⁵U(n, F), E=thermal; measured SF-decay to π-decay branching ratio.

1991IO01 Rev.Roum.Phys. 36, 15 (1991)

Experimental Evidence for Dual Diffractive Resonances in Nucleon-Nucleus Scattering

NUCLEAR REACTIONS ^2,1H(n, n), E at 0.9-10 GeV/c; ⁹Be, ¹²C, ²⁷Al, Cu, ⁵⁶Fe, Sn, ²⁰⁷Pb(n, n), E at 0.9-10 GeV/c; calculated σ vs beam momentum; deduced collective dual diffractive resonances role.

1991IO03 Rev.Roum.Phys. 36, 163 (1991)

Pionic Radioactivity Versus Spontaneous Fission in Decay of Superheavy Nuclei

RADIOACTIVITY A=251-310; calculated pionic-decay Q-value, SF-decay vs pionic decay stability conditions; deduced pionic decay dominance for superheavy nuclei.

1991IO04 Rev.Roum.Phys. 36, 261 (1991)

Pionic Radioactivity as Dominant Decay Mode of Superheavy Nuclei with A-Odd

RADIOACTIVITY Z=110-140; calculated pionic decay T_1/2; deduced stability island.

1991IO05 Phys.Lett. 273B, 20 (1991)

Coherent Pion Emission via a Mesonic Cerenkov Mechanism in Relativistic Proton-Nucleus Collisions

NUCLEAR REACTIONS ²⁰⁸Pb, ¹²⁰Sn(p, xπ), E > 1 GeV; calculated coherent pion emission σ(E). Relativistic collisions, mesonic Cerenkov mechanism.

doi: 10.1016/0370-2693(91)90546-3
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1988IO02 Rev.Roum.Phys. 33, 239 (1988)

Theoretical Predictions for Nuclear Pionic Radioactivity

RADIOACTIVITY ^234,236U, ^240,242Pu, ^244,246Cm, ^250,252Cf, ^256,258Fm, ²⁶⁰Rf, ²⁶⁴Hs(SF); calculated pion decay T_1/2. Pion fissionability parameter.

1988IO03 Rev.Roum.Phys. 33, 109 (1988)

Spontaneous Lambda⁰ Emission as a Natural Strange Radioactivity

RADIOACTIVITY ^256,257Fm, ^250,252Cf, ^242,244Cm, ^240,242Pu(SF); calculated lambda-emission width.

NUCLEAR REACTIONS ^233,235U(n, F), E=thermal; calculated lambda-emission width following fission.

1988IO04 Rev.Roum.Phys. 33, 1071 (1988)

Predictions for Pionic Radioactivity of Even-Even Parent Nuclei

RADIOACTIVITY ^236,238U, ^242,244Pu, ^248,250Cm, ^252,254,256Cf, ^{244,248,256,258}Fm, ²⁵⁸No, ^260,262Rf, ²⁶⁴Hs(SF); calculated pion decay Γ(π)/Γ(SF).

1988IO05 Rev.Roum.Phys. 33, 1075 (1988)

Predictions for Pion Radioactivity of Heavy Nuclei with A-Odd

RADIOACTIVITY ^233,235U, ²³⁷Np, ²³⁹Pu, ^241,243Am, ²⁴⁹Bk, ²⁴⁹Cf, ^253,255Es, ^257,259Fm, ^259,257Md, ²⁵⁹Lr, ²⁵⁹Sg, ²⁶¹Bh(SF); calculated pion decay Γ(π)/Γ(SF).

1988IV04 Rev.Roum.Phys. 33, 105 (1988)

M.Ivascu, M.Brehui, M.Haiduc, D.B.Ion, R.Ion-Mihai, C.Petrascu, M.Petrascu, K.Tolstov, V.Topor

Search for Pion Emission in Thermal Neutron Induced Fission of ²³⁵U

NUCLEAR REACTIONS ²³⁵U(n, F), E=thermal; measured charged pion emission (Γπ/ΓF) upper limit following fission.

1987BU24 Rev.Roum.Phys. 32, 849 (1987)

D.Bucurescu, M.Brehui, M.Haiduc, D.B.Ion, R.Ion-Mihai, C.Petrascu, M.Petrascu, K.Tolstov, V.Topor

Search for Spontaneous Pion Emission in ²⁵²Cf

RADIOACTIVITY ²⁵²Cf(SF); measured pion emission upper limits. Nuclear emulsion irradiation.

1987IO03 Rev.Roum.Phys. 32, 299 (1987)

Experimental Evidence for Spontaneous Pion Emission from Ground State of ²⁵²Cf

RADIOACTIVITY ²⁵²Cf(SF); measured light charged particle spectra following (SF)-decay; deduced evidence for natural π-, μ-decay, Γ(π+μ)/Γ(SF). ΔE-E method.

1987IV05 Rev.Roum.Phys. 32, 937 (1987)

M.Ivascu, D.B.Ion, D.Bucurescu, G.Cata, D.Cutoiu, D.Galeriu, R.Ion-Mihai, N.V.Zamfir

Search for Spontaneous Emission of Mesons from ²⁵²Cf

RADIOACTIVITY ²⁵²Cf(SF); measured (light particle)(heavy particle)-coin; deduced meson decay branching upper limits.

1986IO02 Rev.Roum.Phys. 31, 551 (1986)

Experimental Evidence for Spontaneous Pion Emission from the Ground State of Transuranium Nuclides

NUCLEAR REACTIONS ²³⁵U(n, F), E=thermal; analyzed light particle emission data following fission; deduced π, μ emissions.

RADIOACTIVITY ²⁵²Cf, ²⁵⁹Md(SF); analyzed light particle emission data; deduced π, μ emissions.

1986IO03 Ann.Phys.(New York) 171, 237 (1986)

D.B.Ion, M.Ivascu, R.Ion-Mihai

Spontaneous Pion Emission as a New Natural Radioactivity

RADIOACTIVITY Z=92-106; calculated pionic decay Q, decay widths, statistical factors, energy distributions; deduced pionic radioactivity, possible mechanisms. Nuclear masses input.

doi: 10.1016/0003-4916(86)90001-1
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1981IO01 Nucl.Phys. A360, 400 (1981)